Half to james b



GRAIN VENTILATOR.

110.501,116. Patented J.u 1y11 ,1893.

(No Model.) 2 Sheets-Sheet 2.

, S. A. TOWEL. GRAIN VBNTILATOR.

No. 501,116. Patented July 11,1893.

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Unire SAMUEL A. TOWEL, OF SALISBURY,l NORTH CAROLINA, ASSIGNOR OF ONE- HALF TO JAMES B. LANIER, OF SAME PLACE.

GRAIN-VENTI LATO R.

SPECIFICATION forming part of Letters Patent No. 501,116, dated July 11, 1893.

Application tiled March 9, 1893. Serial No. 465,335. (No model.)

- is a specification.

This invention. relates to grain Ventilating apparatus; and it has for its object to provide certain improvements in machines of this character whereby the ventilation of wheat and other grain in the bins or other receptacles may be effectively secured.

To this end the main and primary object of the invention is to provide an improved grain Ventilating apparatus whereby a thorough ventilation and cooling of the grain in the bin are secured so as to prevent overheating, souring, as Well as to prevent weevil from damaging the grain.

With these and many other objects in View which will readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated and claimed.

In the accompanying drawingsz-Figure l is a perspective view of a grain Ventilating apparatus constructed in accordance with this invention, a portion of the grain bin or box being broken away. Figure 2 is a central longitudinal sectional view of the grain bin or box having a nest of circulating tubes and pipes therein as constructed in` accordance with this invention. Fig. 3 is a central horizontal central View on the line m-zn of Fig. 2. Fig. 4 is a detail in perspective of one of the upright supply tubes showing one of the radiating distributing pipes slightly sepa'- rated therefrom. Fig. 5 is a detail sectional view showing the clamp for holding the fan casing in position on the blower frame. v

Referring to the accompanying drawings, A represents a grain bin or box of any preferred shape or construction, and which is designed to hold wheat or other grain in storage. The said grain bin or box is provided with a front discharge opening B at its front lower side, and over which works the gate C, moving between the guides c. The gate C, controls the discharge of the grain from the bin which passes out of the front discharge opening through the slide discharge board D. The slide discharge board D, is provided with an enlarged discharge opening d, at its front end and moves between the parallel guide strips d', secured to the bottom of the bin or box so that the discharge board or slide can be extended out from the bottom or slid thereunder.

Arranged within the grain bin or box A are the parallel upright supply tubes E. The parallel/ upright supply tubes E, which may comprise a series of jointed sections, which telescope so that the supply tubes can be adjusted to tvany height of bin or box, and said supply tubes are provided with a series of discharge openings F, which serve to direct blasts of air into the grain in the bin orbox, and also at a point intermediate of their ends are provided with a radial series of discharge necks G. The said upright supply tubes E, have theirlowerendsrestingon thebottomof thebin or box and communicate with the contracted discharge openings H, which are formed in the bottom of the bin or box, and also in a horizontalseries in the several sides thereof, as clearly shown in the drawings. The upper ends of the upright supply tubes E, receive the joint necks I, projecting from 'opposite ends of the upper connecting air drum J, which receives a supply of air from the jointed inlet pipe K, having a squared coupling end lo, projecting through au opening Zo" in the front wall or side ofI the grain bin or box, and adapted to be coupled to a suitable blower as will be hereinafter described, and which provides means for supplying a blast of air to the upper air drum J, and also to the perforated supply tubes E, so as to admit the necessary quantity of air into the bin so as to provide for a thorough ventilation and cooling of the grain therein.'

A radial series of horizontal distributing pipes L, are titted at their inner ends onto the radial series of discharge necks G, of the upright supply pipes E, and terminate at their outer ends in contracted discharge ends M, which fit in the contracted discharge openings H, in the sides of the bin or box. They said radial distributing pipes L- are provided with blast openings N, through which the air is discharged into the bin, and by rearoo son of the severalcontracted discharge outlets for the upright supply tubes as well as for the radiating distributing pipes, it will be readily seen that while a too-powerful blast is avoided, at the same time the air is necessarily discharged through lthe perforations of the tubes and pipes into the grain within the bin, so as to thoroughly ventilate the same and cool it to a proper temperature, in order to prevent over-heating, as well as damage by weevils, dac. In order to secure a thorough distribution of the air blast throughout the entire horizontal area of the bin or box, the discharge necks G, of the upright supply tubes E, directly opposing each other, are connecting by the intermediate perforated connected pipe L which provides for ablast into the bin in the space intermediate of the upright supply pipe. It will also be observed that the several distributing pipes are fitted onto the discharge necks G, so that they can be extended to be adjusted to the width of the bin or box.

The coupling end It, of the inlet pipe K, to t-he drum J, receives the tapered end O, of the elongated air trunk P, extended out from the fan or blower casing p, in which is mounted to rotate the fan Q, which serves to force a blast of air through said air trunk and into the air distributing devices arranged within the bin or box as described. The fan or blower casing is designed to be clamped removably in position on the leg frame R. The leg frameR is providedwith the movable clamp sides S, having a guide pin s, at one end working in a slot s', in one of the end bars of the frame, so as to accommodate the movement of said clamping side, which is adj usted by means of the thumb nuts T, Working on the outer ends of the threaded clamping bolts p, passing through the movable side S, and the stationary side S', forming clamping jaws, between which is removably clamped the blower or fan casing p, at one end of the leg frame, thus allowing the air trunk P, to extend beyond one end of said frame. The fan shaft carries a pinion U, which meshes with the spur wheel u, mounted on a suitable shaft u j ournaled on the frame R, and driven by a train of gearing V, from the crank fv, as clearly shown in the drawings.

Now it will be readily seen that by setting the gearing in motion, the fan Q, is driven so as to force a blast of air through the air trunk P, and into the several distributing devices inside of the grain bin or box, thereby proconstruction, operation and many advantages of the herein-described grain ventilator will be apparent without further description, and '.I will have it understood that changes in the form, proportion and the minor details of construction as embraced within the scope of the appended claims, may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what `I claim, and desire to secure by Letters Patent, iS-

1. In a grain ventilator, the combination with a grain bin or box havingdischarge openings in its walls, cfa connected series of perfoi-ated Ventilating pipes arranged inside of the grain bin or box and provided with contracted discharge ends, fitting said discharge openings and a blast supply for said ventilating pipes, substantially as set forth.

2. In a grain Ventilating apparatus, opposite upright perforated supply tubes having a radial series of discharge necks, and lower contracted discharge ends, an air drum connecting the upper ends of said tubes, an inlet pipe connected centrally with said air drum and a suitable blast, and a horizontal series of radially extending perforated distributing pipes iitted onto the radial series of discharge necks, and having contracted discharge ends projecting through the sides of the grain receptacle, substantially as set forth.

3. In a grain Ventilating apparatus, the coinbination of a horizontal nest of connected perfoi-ated air-distributing pipes adapted to be arranged inside of a grain receptable and provided with contracted discharge ends project`- ing through the sides of said receptacle, a

. single inlet pipe connected with said distributing pipes and having a coupling end outside of the grain receptacle, and a blower or fan air trunk having a tapered end adapted to removably fit in the coupling end of said supply pipe, substantially as set forth.

In testimony that I claim the foregoing as my ownI have hereto affixed my signature in the presence of two witnesses.

SAMUEL A. TOWEL. Witnesses:

KERR CRAIGE, F. B. ARENDELL.

IOC' 

